The way thi fella talked down to me when I declined his offer it was tough to walk away. He is a thief and a slight on law abiding sportsman .
If he was talking down to you, perhaps you should have straightened him out there.
As someone else said, a mention that you don't hang with poachers would have been appropriate at that point.
Does his wife, your wife's friend, understand the import of her husband's actions?